the integration of visual basic programming language into physics ...

TextBox3.Text = Nothing
TextBox4.Text = Nothing
TextBox5.Text = Nothing
TextBox6.Text = Nothing
TextBox7.Text = Nothing
End Sub
Now we move on to the Save button. We‟ve added an error message to be displayed if the user
didn‟t calculate the values and wants to save the results without doing it: it checks if the last Text Box
is empty and if it is the error message will be displayed when the user clicks on Save, if not it will
move on and write all the data into an excel table.
For the last button we only have to write 2 code lines. First double click on the Main Page
button. After writing the code, it should look like this [11, 13]:
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Handles Button4.Click
Form1.Show()
Me.Close()
End Sub
2.3 Saving the program
After you‟re done you want to save the application. First you have to build it (go to Build >
Build ~application name~). That will check for any errors made by you in the code (Figure 6). If it‟s
all fine it will display “Build succeeded” in the lower left corner of the program.
Figure 6. Building the application
If there are no code errors you can move on and save the project (Figure 7). It will display
“Item(s) saved” in the lower left corner of the program. If there are errors, Visual Basic will tell you
where to look for.
Figure 7. Saving the application
2.4 The final application (the final GUI)
The final result is binding all the calculators in one interface from which they can be accessed.
In the first drop down box there will be displayed a list of the experimental laboratory projects. The
user will be able to choose the desired project. Even more, each project contains two alternative
experimental methods. Corresponding to that, the application displays the two calculators. Therefore,
Figure 8 presents the determination of the refractive index through the alternative method, “The
minimum deviation of the light”.